As I mentioned the other day, there is a Metal Archives Android app in development. However you probably weren’t able to get into the beta, and that’s because the app was already on it’s way to the marketplace by the time we picked up on the story. It is not officially available.
The app is extremely slick and responsive. The simple UI allows you to search via Band, Album, or Song. And gives you access to all the bands information which is available on the archives. Including reviews if you find yourself at a record shop with an unknown band that caught your eye. It’s also great for settling debates between your friends.